Motor-casing.



No. 774,077. PATENTED NOV. 1, 1904. G. E. JAGOBSON & G. ANDERSON. MOTORCASING.

APPLICATION FILED JULY 25, 1904. N0 MODEL. 2SHEBTB-SHEET 1.

L? II N WITNESSES:

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v INVENTORS ATTORNEY No. 774,077. PATENTE'D NOV. 1, 1904.

G. E. JAGOBSON & O. ANDERSON. MOTOR CASING.

APPLICATION FILED JULY 25, .1904. NO MODEL. 2 SHEETS-SHEET 2.

WITNESSES: zd 2a & MENTORE; 7W- gww? ATTORNEY UNITED STATES PatentedNovember 1, 1904.

PATENT OFFICE.

GUSTAV E. JACOBSON AND CHARLS ANDERSON, OF NEWARK, JERSEY, ASSIGNORS TOTHE ESSEX ELECTRICAL COMPANY, A

CORPORATION OF NEW JERSEY.

MOTOR-CASING.

SPECIFICATION forming part of Letters Paten No. 774,077, dated. November1, 1904;.

Application filed July 25, 1904. Serial No. 217,964. (No model.)

To all whom it may concern.-

Be it known that we, GUs'rAy E. J ACOBSON, a subject of the King ofSweden and Norway, and CHARLs ANDERSON, a citizen of the United States,both residing at Newark, in the county of Essex and State of New Jersey,have invented certain new and useful Improvements in Motor-Casings; andwe do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to figures of reference markedthereon,'which form a part of this specification.

The objects of this invention are to provide an electric motor-casing ofimproved construction and one which shall be particularly adapted foruse in connection with electric fans, to secure compactness and a neatand pleasing appearance, to facilitate adjustment of the motor to bringthe fan into any desired position, and to obtain other advantages andresults, some of which may be referred to hereinafter in connection withthe description of the working parts.

The invention consists in the improved motor-casing and in thearrangements and combinations of parts of the same, all substantially aswill be hereinafter set forth, and finally embraced in the clauses ofthe claim.

Referring to the accompanying drawings, in which like figures ofreference indicate corresponding parts in each of the several figures,Figure 1 is a side elevation of our improved motor-casing looking in thedirection of the supporting axis and with the supportingbracket shown insection. Fig. 2 is a rear end elevation ofthe motor looking in thedirection of the shaft thereof. Fig. 3 is a central section of the motortaken longitudinally of the armature-shaft. Fig. 1 is a plan of themotor with the upper half of the casing removed, and Fig. 5 shows saidupper half of the casing in reverse plan.

In said drawings, 1 indicates our improved motor-casing, which issubstantially spherical in form and cast in three pieces. One of saidpieces, 2, and which we will designate as the end piece, is formed as bycutting off a segment of the sphere by a plane at right angles to thearmature-axis 8, thus forming a zone of one base. The other two pieces,4 and 5, respectively, are formed by cutting the remainder of the bodyportion upon a plane passing through the armature-axis and at rightangles to the end piece 2, above described. The lower hemisphericalpiece 1 provides at its opposite upper edges bearings 6 6 for thesupporting-pivots of the motorcasing and by which it is mounted betweenthe arms 7 7 of a forked support 8. Said lower section 4 also provides ahead or flange 9 to overlap the edge of the upper section 5, and,furthermore, provides at one end a seat 10 to receive an ear ll of theupper section, so that the two may be secured together, as .by a screw12. The two hemispherical sections 4 5 also provide a bead or flange 13to overlap the edges of the end section where, it meets them, beingsecured thereto by screws 14:- Said end section provides a chamber forthe commutator 15 of the motor-shaft, being apertured above and below,as at 16 16, to permit observation of the same. The outer end of the endsection 2 provides a bearing 17 for the motorshaft, and at the sides ofsaid end section between the apertures 16 16 brushes 18 18 of anysuitable construction are applied.

Each hemispherical section 1 or 5 is provided interiorly and centrallywith a projection 19, around which the wire 20 is wound to form thefield-magnets, and the armature 21 is arranged upon the shaft 3 betweensaid field-- magnets. At the opposite end of the casing from the endsection 2 the lower hemispherical section 4: provides a bearing 22 forthe motor-shaft and outside the same an annular chamber 23 to receivewaste oil, the shaft projecting therefrom to receive a fan, as is commonin the art. Oil-cups 2 1, of any suitable and well-known type, may beapplied to the under side of the bearings provided by the motor-casingfor the shaft 3.

The upper hemispherical section 5, it will be understood, is recessed atits edges, as at 25 25, to receive the pivotal bearings 6 6, and at itsrounded end or end opposite the end section 2, as at 26, to receive theshaft-bearing 22. Circuit-wires 27 then connect the different motorparts in any well-known manner, said wires being passed through holes 28in the motor-casing wherever necessary.

Having thus described the invention, what we claim as new is l. Amotor-casing substantially spherical in form and comprising upper andlower approximately hemispherical sections having truncated ends andeach adapted to carry interiorly a field-magnet. one of said sectionsproviding a bearing for a motor-shaft, and an end section applied to thetruncated ends of said upper and lower sections and providing a bearingfor the shaft.

2. A motor-casing comprising upper and lower approximately hemisphericalsections truncated at one end in a plane perpendicular to the line ofdivision between the sections, the lower section providing bearings forpivotal supports and another bearing for the motor-shaft, an end sectionapplied to the truncated ends of said upper and lower sections andproviding a bearing for said shaft and mountings for commutator andbrushes.

3. In a motoncasing, two approximately hemispherical sections truncatedat one end and each adapted to carry interiorly a fieldmagnet, bearingsupon one of said sections for pivotal supports, and one of said sectionsproviding a bearing for the armature-shaft, an end section fitting thetruncated ends of said approximately hemispherical sections and having abearing for the armature-shaft and means for securing said sectionstogether.

In testimony that we claim the foregoing we have hereunto set our handsthis 23d day of July, 190%.

GUSTAV E. JACOBSON. CHARLS ANDERSON. Witnesses:

RALPH LANCASTER, RUSSELL M. EVERETT.

